Doffer driving mechanism foe carding engines



(No M0d e1.)

W. H OPKINSON- & R. TYAGK. .DOFFER DRIVING MECHANISM FOR GARDING' ENGINES.

' N0. 605,057. Patented May 31,1898.

UNITED STAT S PATENT O FIcE. 1

WILLIAM HOPKINSON AND- RICHARD TYACK, OF AOORINGTON,':ENGLAND, ASSIGNORS TO THE HOWARD & BULLOUGH MACHINE COMPANY, LIMITED,

OF ENGLAND.

DOFFER-DRLIVING MECHANISM FOR CARDlNG-ENGINES.

SPECIFICATION forming part of Letters Patent No. 605,057, dated May 31, 1898.

- Application filed March 25,1897.

To all whom it may concern.-

Be it known that we, WILLIAM HoPKINsoN and RICHARD TYAOK, subjects of the Queen of Great Britain, and residents of Accrington,

5 in the county of Lancaster, England, have invented an Improvement in Doffer-Driving Mechanism for Oarding-Engines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention relates to carding-engines, and more particularly to the driving mechanism for the doffer, whereby the speed of the latter may be changed from fast to slow, and vice versa, readily and easily without noise or vibration and without danger of breakage of the mechanism. 7

Inasmuch as any alteration in the speed of the dofier communicates a corresponding alteration to the speedof the feed and delivery rolls in usual manner, there is no change made in the weight of the sliver by the alteration in the speed of the doffer.

Figure 1, in side elevation, represents with sufficient clearness to be understooda carding-engine with our-invention applied thereto. Fig. 2 is a partialtop or plan view of the doffer-driving mechanism to be described, and Fig. 3 is an enlarged sectional view on the line as 0:, Fig. 2. I

The main frame M, cylinder-casing M, the doffer-lever O, on which is secured a stud c to rotatably support a connected pinion c, and gear a in mesh with the large gears are and may be of usual and well-known construction in. carding-engines. As herein shown, two

pulleys A and B of different diameters are fast on the taker-in shaft A the pulley A being shown as. about twice the diameter of pulley B. A second stud c is secured to the .doifer-lever O' and has rotatably mounted thereon a belt-pulley E, having a sleeve-like hub e (see Fig. 3)'eXtended-at each side thereof and provided'at its inner end with a pinion e in mesh with the gear 0 p a Loose pulleys D andF are mounted on the sleeve-like hub 'e, o'ne at each side of the pulley E, said pulleys D and F being con- $eria1No. 629,148. (No model.)

nected with the pulleys A and B, respectively, by suitable driving-belts d and f, and as pulleys D and F are of the same diameter as pulley E the belts d and f may be shifted to cause either to engage the latter or fast pulley.

In Fig. 2 of the drawings the belt at is shown 5 5 as on the pulley E, so that the doifer mechanism will be driven at the higher speed, while if the belts are shifted over to bring belt f on pulley E the doffer will be driven at slower speedas, for instance, when piecing up a broken sliver.

The pulley A will, when effective, drive the doffer, feed-roller, and calender-rolls at full speed.

I When desired, the belts may be shifted onto the loose pulleys D and F, so that the fast pulley E will remain entirely at rest.

The double-belt fork H is mounted to slide on a stand h, laterally extended from the side of the main frame M, the said fork hav- 7o ing an upturned slotted ear h to receive therein an eccentric pin or stud on the end of the shipper-rod h mounted to rock in a suitable bearing h (Best shown in Fig. 2.)

From the foregoing it will be obvious that the doffer mechanism is fully controlled by an easily and readily operated device, so that the speed can be instantly varied without danger of breakage or disarrangement of the parts. v

'When it is desired to stop the dofie'r for stripping out, &c., the lever O is dropped in usual manner,thereby disengaging the dofferdriving wheel 0 and rendering it easy to turn the doffer during the operation of stripping.

Our dofier-driving mechanism may, if desired, be readily used in connection with the sliver stop-motion referred to and illustrated in United States Patent No. 568,197, granted to Hitchon and Duckworth September 22, 1896;

Having fully described our invention, what we claim, and desire to secure by Letters Patent, isp In a carding-engine, the doffer-lever, a stud fast thereon, a fast pulley rotatably mounted 5 on said stud and provided with an extended sleeve-likeihub having an attached pinion, the doffer connections between it and the pinion attached to said fast pulley, and loose names to this specification in the presence of pulleys one at each side of sald fast pulley two subscribing witnesses.

and mounted rotatably on the hub thereof, \VILLIAM IIOPKINSON combined with fast and slow speed driving- RICHARD TYAOK. 5 belts, and means to shift either of said belts lVitnesses:

from the loose pulleys to the fast pulleys. ARTHUR C. HALL, In testimony whereof We have signed our JOHN XV. THOMAS.

Correctinn in Letters Patent No. 605,057.

It is hereby certified that the assignee in'Letters'Patent No. 605,057, granted May 31, 1898, upon the application of William Hopkinson'and Richard Tyack, of Acorington,

England, for an improvement in Doffer-Driving Mechanism for Oarding-Engines,

should have been described and specified as the Howard & Bullough American Machine .Company, Limited, instead of the Hodfard & Bullough Machine Company, Limited;

and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed, countersigned, and sealed this 14th day of June, A. D., 1898.

[SEAL] WEBSTER DAVIS,

Assistant Secretary of the Interior. Oountersigned (3. H. DUELL,

Commissioner 0 f Patents. 

